1. On April 10, 1931, the Oregon State Capitol was dedicated in Salem. The neoclassical-style building was constructed over a period of five years and cost $2.5 million, and it remains the seat of Oregon's government today.

2. In 1879, the first known case of a person being sentenced to the Oregon State Penitentiary occurred on April 10. A man named John Rogers was convicted of manslaughter and sentenced to ten years in prison for fatally shooting a saloon keeper in McMinnville.

3. On April 10, 2006, the University of Oregon announced that it had received a $100 million gift from former Nike CEO Phil Knight and his wife, Penny. The donation, one of the largest ever made to a public university, was used to create the Knight Cancer Institute and to fund research and other initiatives.

4. In 1920, the Eugene Register-Guard newspaper launched its Sunday edition on April 10. The paper, which had been published six days a week since 1867, had a circulation of around 12,000 at the time.

5. On April 10, 1865, the end of the Civil War was announced to the residents of Portland. A telegraph message was sent from Washington, D.C. to San Francisco, and then relayed by wire to Portland, where the news was greeted with celebrations and gun salutes.